20051442132 has 24 divisors (see below), whose sum is σ = 49538857536. Its totient is φ = 6290648448.

The previous prime is 20051442119. The next prime is 20051442133. The reversal of 20051442132 is 23124415002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051442133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49145488 + ... + 49145895.

It is an arithmetic number, because the mean of its divisors is an integer number (2064119064).

Almost surely, 2^20051442132 is an apocalyptic number.

It is an amenable number.

20051442132 is an abundant number, since it is smaller than the sum of its proper divisors (29487415404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20051442132 is a wasteful number, since it uses less digits than its factorization.

20051442132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98291407 (or 98291405 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20051442132 its reverse (23124415002), we get a palindrome (43175857134).

The spelling of 20051442132 in words is "twenty billion, fifty-one million, four hundred forty-two thousand, one hundred thirty-two".